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CVE-2026-40880 Zebra: Cached Mempool Verification Bypasses Consensus Rules for Ahead-of-Tip Blocks

🗓️ 21 Apr 2026 19:18:22Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 1 Views

Cache verification flaw in Zebra allows a consensus split by a transaction valid at height H+1 but invalid at H+2, fixed in version 4.3.1 and zebra-consensus 5.0.2.

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08 Jul 2026 08:13Current
6Medium risk
Vulners AI Score6
CVSS 47.2
EPSS0.00261
1